Hot-air casing for heating systems.



. Patenfed'ne. 2,l |902. E .L MALLEN. HUT AIR GASING F03 HEATINGSYSTEMS. (Application mea .my so, 1901.)

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Patented Dec. r2, |902'.

E J MALLEN HUT AIB CASING FOR HEATING SYSTEMS.

(Apphcatxon led July 30 1901 .\J &/

(No ModeL) UNITED TATES ATENT union.

EDWARD J. MALLEN, OF NEW YORK, N. Y., ASSIGNOR TO BAKER SMITH ANDCOMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

`HOT-Alli.` CASING FOR HEATING SYSTEMS.

SPECIFICATION forming part of Letters Patent No. 714,724, dated December2. 1902- Application filed July 30.1901. Serial No. 70,201. (No model.)

.[0 all whom it Wtcty concern:

Be it known that I, EDWARD J. MALLEN, a

` citizen of the United States, and a resident of New York, in thecounty and State of New York, have invented certain new and usefulImprovements in Hot-Air Casings for Heating Systems, of which thefollowing is a specifioation.`

My invention relates. to a knockdown casing for surrounding asteam-heating coil having the usual holes for the entrance of cold airand the exit of heated air for house-warming purposes.

The organization comprising the invention consists of the combination ofa top sheet adapted to be suspended from an overhead support and havinga pair of parallel depending flanges surrounding its edges, a secondsheet formingbottom and sides of the casing and having its edgesprojecting between said projecting iianges and secured thereto by pinspassing transversely through said edges and one of said dependingiianges, end pieces having likewise double flanges formed on theiredges, enabling them to surround the lateral edges of said second sheetand to form an airtight joint, and pins passing transversely throughsaidlateral edges and one of the flanges and securing the ends to theother casing-sections.

The further nature and scope of the invention are defined in theappended claims.

Figure lis a side elevation of the metal casing with a portion of theside broken away to show the interior construction. The figure includesa beam in the building, to which the construction is fastened. Fig. 2 isa Vertical central section of the left-hand end of the construction.Fig. 3 is a similar section of the right-hand portion. Fig. 4 is a planof the whole device with a portion of the supporting-beams. A part ofthe top sheet is broken away to disclose the interior. Fig. 5 is anexterior or plan of an end piece for the casing ready to be appliedthereto. Fig. 6 is a similar View of the other end piece. Figs. 7 and 8are different yiews, on an enlarged scale, of one of the details oftheconstruction. Fig. 9is a longitudinal Vertical sectional view throughthe center of the casing with the heating-coil removed.

Dotted lines in all the figures represent hidden parts.

The device consists of the combination of a top sheet A, suitably ofgalvanized iron, with downwardly-turned edges B at the sides and CA atthe end at right angles to the plane of the sheet; verticallyhangingrods D, suspended from the beams E; adjustablecollars F, with set-screwsG, for supporting said sheet against or just below said beams E; anangleiron rectangular frame riveted to .said top sheet A, whose sideswhich hang down and are lettered I-I at the sides of the casing andwhose sides at the end of the casing are lettered I, said frameextending around the edges of said top sheet, so as to leave a distancebetween the frame and the downwardlyturned edges B and O about equal tothe thickness of the sheet-iron, said rods D being terminated byeye-rings K; horizontal rods J, passing through said rings in pairs andheld therein by nuts L on the ends `,of said horizontal rods, which arefor supporting the coil of steam-pipe; a sheetM of galvanized iron belowand substantially parallel to the horizontal rods J and bent verticallyupward to forni the opposite side N of the casing, said sidesterminating between two of the downwardly-bent edges of the top sheet Aof the casing, respectively, andthe outside of the angle-irons I-I attwo of the opposite edges of said top sheet A, to which angle-irons thesaid sides of the casing are detachably secured by split pins O, thesaid sides and bottom sheets projecting farther horizontally than thetop sheet; an end sheet P, with its top edge between thedownwardly-turned edge C of the top sheet A and the end angle-iron I,and said end sheet having three of its edges bent outward at rightangles and lying against the inner surface of the side and bottom sheetand bent over to and lying against the outside surface of the said sideand bottom sheet, and the said end sheet having an opening for theadmission of cold air; a second left-hand sheet P', with its top edgelying between the` downwardlyturned edge O of the top sheet A and havingits other three edges turned off to overlap the end of the sides N andthe bottom M, and angle-irons R, riveted to the three edges of saidsecond end sheet and bearing against IOO the innerl surfaces of saidside and bottom sheet, and second end sheet P', having an opening at Sfor the exit of the air heated by said steam-coil.

The operation consists in selecting the proper size of the casingelements from those in stock, applying the hanging rods D to the beamsE, slipping the top sheet A, with its angle-irons I-I and I, over therods D, then supporting said sheet by means of the adjustable collars Fand set-screws Gr, placing the upper edges of the sides N underneath thedownwardly-turned edges B, fastening the sides N to the angle-iron II bythe split pins O, slipping the upper edge of the end sheet under thedownwardly-turned edge C at the right-hand end, fastening the end sheetP to the angle-iron I by split pins T and to the side N by split pins Uand the bottom plate or sheet by split pins U', applying the other endsheet in a similar manner and fastening by split pins V. To take thedevice apart, the operation is similar except reverse. The coil ofsteam-pipe is supposed to be supported upon the rods J.

Each eye-ring K consists of a ring provided with a tapped nut K andscrewed upon the rod D, which may be cut off and threaded at the rightlength while putting up the casing.

I claim as my invention- 1. A hot-air casing for heating systemscomprising a top sheet having a depending flange surrounding its edges,a second sheet forming bottom and sides, and other sheets forming endsof the casing and having tongues upon their edges interlocking with saidflange, and a parallel flange secured to one of the pieces andoverlapping the joint, whereby to prevent the escape or entrance of air.

2. Ahot-air casing forheatingsystems comprising a top sheet having adepending flange surrounding its edges, a second sheet forming bottomand sides, and other sheets forming ends of the casing and havingtongues upon their edges interlocking with said flange, a parallelflange secured to one of the pieces and overlapping the joint, and pinspassing through the tongue and said overlapping flange, whereby tosecure the parts in position and suspend the side, end and bottom sheetsfrom the top sheet.

3. A hot-air casing for heating systems comprising a top sheet adaptedto be suspended from an'overhead support and having a pair of paralleldepending flanges surrounding its edges, a second sheet forming bottomand sides of the casing and having its edges proflanges formed on theiredges enabling them to surround the lateral edges of said second sheetand to form an air-tight joint, and pins passing transversely throughsaid lateral edges and one of the flanges and securing the ends to theother casing-sections, substantially as described.

4. In a hot-air heating system, the combination of hanger-rods adaptedto be suspended from an overhead support, heating means suspendedtherefrom, a top sheet of a heating-casing having a pair of paralleldepending flanges surrounding its edges and through which saidhanger-rods pass, collars adj ustably mounted on said hanger-rodsdirectly beneath said top sheet and upon which the latter rests, athree-sided sheet forming sides and bottom of the casing and whose topedges project between the flanges of the top sheet, pins passingtransversely through said top edges and the adjacent flange to supportsaid second sheet in position, a rear end sheet whose top edge issimilarly secured between the depending flanges of the top sheet andwhich has similar parallel flanges projecting from its side and bottomedges embracing the corresponding edges of the side and bottom sheet andattached thereto by means of pins, and a front end sheet whose top edgeis likewise secured between the depending .flanges of the top sheet, andwhose other three sides are provided with an outwardly-extendingsaddle-flange embracing the lateral edges of the side and bottom sheetand secured thereto in a similarmanner by means of pins, the

whole forming a heating-casing of four sheets secured in position andforming air-tight joints.

5. In an air-heating casing for hot-air systems, a joint comprising apair of parallel flanges on one part, a tongue on another partinterlocking between said flanges, and fastening means passedtransversely through said tongue and one of the flanges, substantiallyas described.

In testimony whereof I hereunto sign my name and afx my seal this 27thday of July, 1901.

y EDWARD J. MALLEN.

IOO

